Quote:
Originally Posted by Genius
What is the diameter of the primaries on the exhaust manifold? Was looking at the supersprint manifold to keep the crossbank configuration but they are 37mm ID which may be too small.
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My manifold is fab’d with 42mm ID primaries and doesn’t have any pinch points like the OE or even the Supersprint manifold has. My shop actually had a car (F10 M5) in right before mine in which was getting some hybrid turbos and customer had bought the Supersprint manifold for his build. They said it was terrible. Fitment was off left to right and the tubing was barely larger than OE. They didn’t even end up using it.